According to the agricultural encyclopedia, it is not necessarily because potatoes are not ripe that they are crisp. If some vinegar is put in the frying process, the potato chips will also taste crisp. At the same time, if potatoes are soaked during cooking, their taste will naturally be affected, because eating potatoes pays attention to crispness, and people usually soak them for a period of time before frying, so as to reduce the starch content in them, which can ensure that they can be fried in a short time and keep them crisp.

Potatoes are sweet and flat. Stomach and large intestine meridian. It has the effects of invigorating qi, invigorating spleen, regulating stomach, detoxicating and reducing swelling. Potatoes with blue skin or sprouting are inedible because they contain excessive solanine and are toxic. "Compendium of Materia Medica" records that potatoes can treat spleen and stomach deficiency and cold, shortness of breath and fatigue after illness. Potato tuber contains a variety of vitamins and inorganic salts, which can prevent scurvy and stimulate hematopoietic function; Inorganic salts are indispensable elements for people's health and children's development and growth, which is conducive to protecting cardiovascular and cerebrovascular health and promoting overall health.